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Chaotic dynamics from coupled magnetic monodomain and Josephson current
(Physical Review E, 2023)
The ordinary (superconductor-insulator-superconductor) Josephson junction cannot exhibit chaos in the absence of an external ac drive, whereas in the superconductor-ferromagnet-superconductor Josephson junction, known as ...
Influence of anharmonic convex interparticle potential and Shapiro steps in the opposite direction of driving force
(Physica Scripta, 2021)
The response function and largest Lyapunov exponent analysis were applied to the driven overdamped Frenkel-Kontorova model with two types of anharmonic convex interparticle potentials. In both cases model reduces to a ...
A mathematical model of the hypothalamo-pituitary-adrenocortical system and its stability analysis
(Chaos, Solitons and Fractals, 2005)
It is commonly assumed that the hypothalamo-pituitary-adrenocorticat (HPA) axis generates oscillations, because a regular daily rhythm of its component hormones is observed. We offer another plausible explanation of the ...
Electrodeposition of Aluminium-Vanadium Alloys from Chloroaluminate Based Molten Salt Containing Vanadium Ions
(Metals, 2021)
The Al-V alloys were synthetized by potentiostatic electrodeposition onto a glassy carbon electrode from equimolar AlCl3 + NaCl bath containing vanadium ions at 200 °C. The alloy deposits were characterized by X-ray ...
When Heart Beats Differently in Depression: Review of Nonlinear Heart Rate Variability Measures
(JMIR Mental Health, 2023)
Background: Disturbed heart dynamics in depression seriously increases mortality risk. Heart rate variability (HRV) is a rich source of information for studying this dynamics. This paper is a meta-analytic review with ...
Crystal Structure and Magnetocaloric Effect of La0.80Ag0.15MnO3 Nanoparticles
(Acta Physica Polonica A, 2020)
Annealing of_ non stoichiometric La0.80Ag0.15MnO3 nanoparticles leads to the change of the crystal symmetry from Pnma to R3c and to almost doubling of its Curie temperature from 117 K to 317 K. This effect is due to the ...
Synthesis, structure, magnetic properties and DFT study of a dinuclear copper(II) macrocyclic complex containing acetate groups
(Inorganica Chimica Acta, 2021)
Synthesis, spectroscopic characterizations and single crystal X-ray structure of a new dinuclear Copper(II) complex of the form [Cu2L(µ-O-OAc)(OAc)2](PF6) are reported. The molecular structure of the complex indicates that ...
Synthesis and Properties of Ni-doped Goethite and Ni-doped Hematite Nanorods
(Croatica Chemica Acta, 2018)
Ni-doped goethite (α-FeOOH) nanorods were synthesized from mixed Fe(III)-Ni(II) nitrate solutions with various Ni/(Ni+Fe) ratios (0, 5, 10, 20, 33 and 50 mol % Ni) by hydrothermal precipitation in a highly alkaline medium ...
Influence of low-spin Co3+ for high-spin Fe3+ substitution on the structural, magnetic, optical and catalytic properties of hematite (α-Fe2O3) nanorods
(Journal of Physics and Chemistry of Solids, 2021)
Pure hematite nanorods and very long and thin cobalt-doped hematite nanorods (nanoneedles) were prepared by a combined precipitation and annealing method. The influence of the level of cobalt doping on different properties ...
Magnetite/Mn-ferrite nanocomposite with improved magnetic properties
(Materials Letters, 2014)
Magnetic nanocomposites can show enhanced properties compared to their single phase counterparts. Novel soft ferrite Fe3O4/soft ferrite MnFe2O4 nanocomposite, as well as pure MnFe2O4 and Fe3O4 for the sake of comparison, ...